Poppy Seeds – Romneya coulteri

Bring a touch of breathtaking elegance to your garden with Romneya coulteri, commonly known as Matilija Poppy. Famous for its large, crepe-like white blooms and sunny yellow centers, this drought-tolerant perennial is a standout choice for gardeners looking for dramatic, low-maintenance flowers. With the right conditions, it rewards you with long-lasting blooms and striking foliage that enhances any landscape.

Features

• Large, showy blooms with white petals and golden centers.

• Heat and drought tolerant once established.

• Perennial variety suitable for long-term garden landscapes.

• Ideal for borders, wildflower gardens, and dry areas.

• Fast-growing with proper sun and soil conditions.

Specifications

• Botanical Name: Romneya coulteri

• Common Name (US): Matilija Poppy

• Seed Type: Perennial Flower Seeds

• Growth Habit: Upright, spreading

• Height: 4–8 ft

• Light Requirement: Full sun

• Soil Requirement: Well-drained, sandy or loamy soil

• Watering: Low; drought tolerant after establishment

Planting Season

• Sowing Indoors: Late winter to early spring (February–March)

• Direct Sowing Outdoors: Spring (March–May) or Fall (September–October) in mild climates

USDA Hardiness Zones

• Zones: 8–10

• Best Months for Outdoor Planting:

  • Zones 8–9: March–May, September–October

  • Zone 10: February–April, October–November

Germination

• Germination Time: 21–45 days

• Temperature: 70–75°F

• Stratification: Light scarification or cold treatment recommended for improved germination